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CS4270 Datasheet(PDF) 3 Page - Cirrus Logic |
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CS4270 Datasheet(HTML) 3 Page - Cirrus Logic |
3 / 49 page DS686PP1 3 CS4270 TABLE OF CONTENTS 1. PIN DESCRIPTIONS - SOFTWARE MODE ........................................................................................... 6 2. PIN DESCRIPTIONS - STAND-ALONE MODE ..................................................................................... 7 3. TYPICAL CONNECTION DIAGRAM ..................................................................................................... 8 4. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 9 SPECIFIED OPERATING CONDITIONS ............................................................................................... 9 ABSOLUTE MAXIMUM RATINGS ......................................................................................................... 9 THERMAL CHARACTERISTICS ............................................................................................................ 9 DAC ANALOG CHARACTERISTICS - COMMERCIAL GRADE .......................................................... 10 DAC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE .......................................................... 10 DAC ANALOG CHARACTERISTICS - ALL MODES ........................................................................... 11 DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE .............................. 12 ADC ANALOG CHARACTERISTICS - COMMERCIAL GRADE .......................................................... 13 ADC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE .......................................................... 14 ADC DIGITAL FILTER CHARACTERISTICS ....................................................................................... 15 DC ELECTRICAL CHARACTERISTICS .............................................................................................. 16 DIGITAL CHARACTERISTICS ............................................................................................................. 16 SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT ............................................................... 17 SWITCHING CHARACTERISTICS - I²C MODE CONTROL PORT ..................................................... 20 SWITCHING CHARACTERISTICS - SPITM CONTROL PORT .......................................................... 21 5. APPLICATIONS ................................................................................................................................... 22 5.1 Stand-Alone Mode ......................................................................................................................... 22 5.1.1 Recommended Power-Up Sequence .................................................................................... 22 5.1.2 Master/Slave Mode ............................................................................................................... 22 5.1.3 System Clocking .................................................................................................................... 22 5.1.4 Clock Ratio Selection ............................................................................................................ 23 5.1.5 Interpolation Filter ................................................................................................................. 23 5.1.6 High-Pass Filter ..................................................................................................................... 23 5.1.7 Mode Selection & De-Emphasis ............................................................................................ 24 5.1.8 Serial Audio Interface Format Selection ................................................................................ 24 5.2 Control Port Mode ......................................................................................................................... 24 5.2.1 Recommended Power-Up Sequence - Access to Control Port Mode ................................... 24 5.2.2 Master / Slave Mode Selection .............................................................................................. 24 5.2.3 System Clocking .................................................................................................................... 25 5.2.4 Clock Ratio Selection ............................................................................................................ 25 5.2.5 Internal Digital Loopback ....................................................................................................... 26 5.2.6 Auto-Mute .............................................................................................................................. 26 5.2.7 High-Pass Filter and DC Offset Calibration ........................................................................... 26 5.2.8 De-Emphasis ......................................................................................................................... 27 5.2.9 Oversampling Modes ............................................................................................................ 27 5.3 De-Emphasis Filter ........................................................................................................................ 27 5.4 Analog Connections ...................................................................................................................... 28 5.4.1 Input Connections ................................................................................................................. 28 5.4.2 Output Connections ............................................................................................................... 30 5.5 Mute Control .................................................................................................................................. 30 5.6 Synchronization of Multiple Devices .............................................................................................. 31 5.7 Grounding and Power Supply Decoupling .................................................................................... 31 6. CONTROL PORT INTERFACE ............................................................................................................ 32 6.1 SPI™ Mode ................................................................................................................................... 32 6.2 I²C® Mode ...................................................................................................................................... 33 7. REGISTER QUICK REFERENCE ........................................................................................................ 34 8. REGISTER DESCRIPTION .................................................................................................................. 35 8.1 Chip ID - Address 01h ................................................................................................................... 35 |
Número de pieza similar - CS4270_06 |
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Descripción similar - CS4270_06 |
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